HP 16500L Installation And Service Manual page 65

Concepts
HP 16500B File System Directory Structure
The 1st_line.txt File The 1st_line.txt file lists the number of the
first line of the most recent data acquisition.
This file shows the number of states that occur before the trigger state, which
is always state zero (at line number 0). You can use this information to align
data from different measurements.
Time Tag and State Tag Data If time tags have been turned on, the
time_abs.txt file contains a column of time values for the most
current state or timing measurement.
If state tags have been turned on, the state_abs.txt file contains a
column of state count values for the most current state measurement.
Line Numbers The line_num.txt file contains line numbers
corresponding to the lines of data in a state listing.
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